Caption: Discoverers of Element 103, at the Lawrence Radiation Laboratory at the University of California, Berkeley, USA. From left to right, they are US research chemists Torbjorn Sikkeland, Almon E. Larsh, Albert Ghiorso (1915-2010), and Robert M. Latimer. This photograph was taken around the time of the discovery, which took place on 14 February 1961. Element 103 was later named lawrencium.Restrictions: